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M95256-WMW6 from ST,ST Microelectronics

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M95256-WMW6

Manufacturer: ST, STMicroelectronics

256Kbit and 128Kbit Serial SPI Bus EEPROM With High Speed Clock

Partnumber Manufacturer Quantity Availability
M95256-WMW6,M95256WMW6 ST, STMicroelectronics 5997 In Stock

Description and Introduction

256Kbit and 128Kbit Serial SPI Bus EEPROM With High Speed Clock The M95256-WMW6 is a 256-Kbit (32-Kbyte) serial EEPROM manufactured by STMicroelectronics.  

### **Specifications:**  
- **Memory Size:** 256 Kbit (32 Kbyte)  
- **Interface:** SPI (Serial Peripheral Interface)  
- **Operating Voltage:** 1.8V to 5.5V  
- **Speed:** Up to 10 MHz (SPI clock frequency)  
- **Write Time:** 5 ms (typical)  
- **Endurance:** 4 million write cycles per byte  
- **Data Retention:** 200 years  
- **Temperature Range:** -40°C to +85°C  
- **Package:** SO8 (150 mil)  

### **Descriptions & Features:**  
- **SPI-Compatible Interface:** Supports Mode 0 (0,0) and Mode 3 (1,1).  
- **Software Write Protection:** Configurable via software for partial or full memory protection.  
- **Page Write Mode:** Supports up to 64-byte page writes.  
- **Low Power Consumption:** Optimized for battery-powered applications.  
- **Industrial-Grade Reliability:** High endurance and long data retention.  
- **Unique ID Feature:** Some variants may include a factory-programmed unique identifier.  

This EEPROM is commonly used in automotive, industrial, and consumer electronics for data storage applications.

Application Scenarios & Design Considerations

256Kbit and 128Kbit Serial SPI Bus EEPROM With High Speed Clock

Alternative Part Number

  • 25AA256-I/SN --: 256 Kbit SPI EEPROM in SOIC-8, same interface and density, widely available and pin-compatible with the M95256.
  • CAT25256VI-GT3 --: 256 Kbit SPI serial EEPROM in SOIC-8, functionally equivalent with comparable speed and voltage range.
  • AT25256B-SSHL-T --: 256 Kbit SPI EEPROM in SOIC-8 package, drop-in functional replacement for the M95256-WMW6.

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